Improvement in argand-lamp burners



H. W. HAYDEN.

\mprovement in Argand Lamp-Burners.

Patented June 13, I871.

AM PHUTO-HTIIOHMFHIC m M r lama/mm- M'ocns UNITED STATES PATENT OFFICE.

Illltrl. M. W. HAYDEN, OF VVATERBURY, CONNECTICUT, ASSIGNOR TO HOLMES,BOOTH & HAYDENS, OF SAME PLACE.

IMPROVEMENT IN ARGAND-LAMP BURNERS.

Specification forming part of Letters Patent No. 116,955, dated June 13,1871.

To all whom it may concern:

Be it known that 1, HIRAM W. HAYDEN, of Waterbury, in the county of NewHaven and State of Connecticut, have invented an Improvementin ArgandLamps; and the following is declared to be a correct description of thesame:

This invention relates to that class of Argand lamps in which there is alateral connection to the central air-tube, and a flat wick bent up intoa cylindrical form above this lateral connection.

In Letters Patent granted August 16, 1870, No. 106,368, a taperingwick-tube, a cylindrical air-tube and lateral connection, and awickholder are shown, but said wick holder is operated by a rack andpinion, the latter passing through an opening in the exterior wick tube5 hence there is an opportunity for the escape of vapors at this point,and a risk of explosion when the liquid thatis burned contains lighthydrocarbon, such as gasoline, benzine, or naphtha.

My invention is made with reference to obtaining safety and freedom fromodor in burning any character of liquid hydrocarbon; and said inventionconsists in a wick-raising screw, interposed between the wick tube andthe wickholder; and connected at its upper end with a cylinder or sleeveexterior to the wick-tube, in combination with such wick-tube, air-tube,and lateral connection, whereby the wickraiser is operated without anyslot or opening through the wick-tube.

In the drawing, Figure 1 is a section of the lamp complete. Fig. 2 is aseparate section of the screw wick-raiser. Fig. 3 is asection, and Fig.4 a plan view of the wick-holder, showing a modification thereof.

The conical wick-tube a, screw-ring I), perforated air-distributor c,chimney-holder d, central air-tube e, and lateral inlet f are similar tothe corresponding parts in the aforesaid Letters Patent, except in thefeatures herein named, and the wick-holder i receives within it the wickin a somewhat similar manner, and the Wick is held by the teeth out, andpreserved in a cylindrical form around the airtube a, and can be raisedor lowered by the movement of said holder This holder i may be guidedand kept from turning by the slide 1, passing through a guide, as; orthe holderi may be a short cylinder or hoop, as shown in Figs. 3 and 4,and guided and kept from turning by a pin, 2, upon the air-tube e, or byany other convenient means. The wick-tube a is not as high as theair-tube e, in order that there may be a connection at the top of thecylindrical tube 1", by means of which the said tube 7' may be revolved.This tube 7', being cylindrical, holds the wick in a better shape forbeing raised and lowered correctly than the wick-tubes heretoforeemployed with ilat wick bent into a cylindrical form, because said tube0 is parallel, or nearly so, to the air-tube c. This tube 0 is made witha screw-thread in its inner surface, that acts upon projections from thewick-holderi to raise or lower the wick as said tube 1' is revolved. Thetuber may be revolved by any convenient means. I have shown and preferto employ an exterior sleeve, 8, surrounding the air-tube a, and madewith a flange, 3, at its lower end, above which the spring tooth tocatches, to hold the parts 1" and 8 down to place, but allow of theirbein g revolved. These parts 4* and s are firmlyunited at their upperends. The chimney-holder d is made with a guide, 0, extending up to thesleeve s, and a projection or projections,4, upon such sleeve isreceived into one of a series of notches in the guide 0, so that thewick can be raised or lowered by turning the chimney-holder, and with itthe sleeve .9 and tube 4", and the chimney-holder and chimney can belifted off for lighting or trimming. The flat wick can be easilyinserted through the wick-tube a and drawn above the end of 0, when thetube r is removed then the holder 23, put around the same at a properdistance from the end of the wick, and its points penetrate and hold thewick; then the wick is'put into the tube r and the parts drawn down toplace in the wick-tube a. This construction gives great facility forintroducing and adjusting the wick.

I claim as my invention- 1. The tube 1*, introduced between the wick andthe tube a, in combination with the said tube a, air-tube e, and lateralopening to hold a flat wick in a cylindrical form between said tube 1*and air-tubc c, as set forth.

2. The tube 7", mmle with a screw, in eombitube (1 nation with thewiekJmlder i, air-tube a, lateral l'erth. inlet, and tube a,substantially as set forth. Signed by me this 16th day of May, A. D.

J. The sleeve 8, in combination with the tube 1871. *r, Wick-tube a,air-tube a, and lateral inlet f,

, and lateral inlet, substantially as set U. 'W. HAYDEN.

substantially as set forth. Witnesses:

4. The removable ehimneyliolder (Lin 00m A. S. CHASE, bination with thesleeve 8, tubes 1" and a, air- A. F. ABBOTT.

